By the "15 minutes" standard, Napster has enjoyed nine lives. Not that long ago, the music file-sharing service was front-page news almost every day of the week. Castigated by the entertainment industry as a harbinger of new distribution models that threatened the very foundations of market capitalism, Napster has been under continuous legal attack for almost two years.
The agonizingly slow litigation process has eroded the startup's celebrity and diminished…